FLUSH_CLEANUP
if ((ump->softdep_flags & (FLUSH_CLEANUP | FLUSH_EXIT)) == 0)
ump->softdep_flags &= ~FLUSH_CLEANUP;
if ((ump->softdep_flags & (FLUSH_CLEANUP | FLUSH_EXIT)) == 0)
ump->softdep_flags |= FLUSH_CLEANUP;
(FLUSH_CLEANUP | FLUSH_EXIT)) == 0)
altump->softdep_flags |= FLUSH_CLEANUP;